Q: Is 398,520 a Composite Number?

Why is 398,520 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 398,520 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 41 45 54 60 72 81 82 90 108 120 123 135 162 164 180 205 216 243 246 270 324 328 360 369 405 410 486 492 540 615 648 738 810 820 972 984 1,080 1,107 1,215 1,230 1,476 1,620 1,640 1,845 1,944 2,214 2,430 2,460 2,952 3,240 3,321 3,690 4,428 4,860 4,920 5,535 6,642 7,380 8,856 9,720 9,963 11,070 13,284 14,760 16,605 19,926 22,140 26,568 33,210 39,852 44,280 49,815 66,420 79,704 99,630 132,840 199,260 and 398,520, with no remainder.

Since 398,520 cannot be divided by just 1 and 398,520, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).